The Collaborative International Dictionary of English v.0.48:

Wheatear \Wheat"ear`\, n. (Zool.)
   A small European singing bird (Saxicola [oe]nanthe). The
   male is white beneath, bluish gray above, with black wings
   and a black stripe through each eye. The tail is black at the
   tip and in the middle, but white at the base and on each
   side. Called also checkbird, chickell, dykehopper,
   fallow chat, fallow finch, stonechat, and whitetail.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Whitetail \White"tail`\, n.
   1. (Zool.) The Virginia deer.
      [1913 Webster]

   2. (Zool.) The wheatear. [Prov. Eng.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

whitetail
    n 1: common North American deer; tail has a white underside
         [syn: Virginia deer, white tail, whitetail, white-
         tailed deer, whitetail deer, Odocoileus Virginianus]